The Wechsler Adult Intelligence Scale (WAIS) is an IQ test designed to measure intelligence and cognitive ability in adults and older adolescents. The original WAIS (Form I) was published in February 1955 by David Wechsler, as a revision of the Wechsler–Bellevue Intelligence Scale, released in 1939.
What did Wechsler add to the field of cognitive psychology?
David Wechsler was a cognitive psychologist who became well known for his development of intelligence tests, which evaluate cognitive abilities in adults and children.
What did David Wechsler add to intelligence testing?
Wechsler is also notable for his use of the deviation quotient (DQ), a technical innovation that replaced the use of mental ages in computing IQ scores. This greatly improved the utility of normative comparisons when intelligence tests are used with adult examinees (Edwards, 1994).
Why did Wechsler develop his intelligence test?
The goal of his original test was to help identify children who needed specialized help in school and he felt that a variety of individual factors, including a child’s level of motivation, could influence test scores. In a sense, Wechsler’s test was a return to many of the ideas that Binet had also espoused.
What is Wechsler test in psychology? – Related Questions
Why is the Wechsler memory scale important?
There is clear evidence that the WMS differentiates clinical groups (such as those with dementias or neurological disorders) from those with normal memory functioning and that the primary index scores can distinguish among the memory-impaired clinical groups.
Why are Wechsler tests still used today?
Research has shown that the Wechsler test is one of the most well-designed tests to measure intelligence. It provides a wide profile of indexes and scales and really allows for the diagnosis of certain mental complications, as well as an accurate depiction of a person’s intelligence.
Why did Wechsler design the Wechsler?
Why did David Wechsler design the Wechsler Intelligence Scale? He didn’t feel that the other tests adequately measured intelligence levels in adults. He felt that knowing someone’s mental age was important. He needed a formula for comparing mental age to chronological age.
When did David Wechsler develop his test?
In 1939 he produced a battery of intelligence tests known as the Wechsler-Bellevue Intelligence Scale. The original battery was geared specifically to the measurement of adult intelligence, for clinical use.
What was the purpose of the first standardized intelligence test?
Since Alfred Binet first used a standardized test to identify learning-impaired Parisian children in the early 1900s, it has become one of the primary tools for identifying children with mental retardation and learning disabilities.
Who developed the Wechsler intelligence test?
David Wechsler (/ˈwɛkslər/; January 12, 1896 – May 2, 1981) was a Romanian-American psychologist. He developed well-known intelligence scales, such as the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC).
Who is known as the father of intelligence?
Detailed Solution
Alfred Binet (early 1900s) is known as the man who created the first intelligence test in the form we know them today. He is commonly known as the father of IQ testing.
Who created the Wechsler memory scale?
Wechsler, D.A. (1945). A standardized memory scale for clinical use. Journal of Psychology, 19, 87 – 95.
What theory is WAIS based on?
The Cattell-Horn-Carroll (CHC) theory of cognitive abilities has been guiding in the revision of the Wechsler Adult Intelligence Scale-Fourth edition (WAIS-IV). Especially the measurement of fluid reasoning (Gf) is improved. A total of five CHC abilities are included in the WAIS-IV subtests.
What are the four major components of the Wechsler intelligence test?
The WAIS-IV comprises a full scale IQ, as well as indexes on four factors: verbal comprehension, perceptual reasoning, working memory and processing speed.
What type of intelligence does WAIS test?
Wechsler Adult Intelligence Scale | Fourth Edition. The Wechsler Adult Intelligence Scale | Fourth Edition (WAIS-IV) is the most advanced adult measure of cognitive ability, based on recent research in the area of cognitive neuroscience and the theories and work of David Wechsler PhD.
What does the WAIS consists of?
WAIS measures global or general intelligence and is commonly used by psychologists. It is divided into 2 parts: the verbal scale and the performance scale. Each of these 2 parts is further divided into subtests each of which taps a specific verbal or nonverbal skill.
What is a criticism of the WAIS?
What is a criticism of the WAIS? Giving people an overall IQ score gives the impression that there is only one kind of intelligence.
How does Dr Wechsler conceptualize intelligence?
He described intelligence as “the global capacity of a person to act purposefully, to think rationally, and to deal effectively with his environment.” He developed the Wechsler-Bellevue Intelligence Scale, which quickly became the most widely used adult intelligence test in the United States.
What are the 10 core subtests of the WAIS?
The WAIS-IV has 10 core subtests (Arithmetic, Block Design, Comprehension, Digit Span, Digit Symbol, Information, Letter-Number Sequencing, Matrix Reasoning, Picture Arrangement, Picture Completion, Processing Speed, Object Assembly, Similarities, Symbol Search, and Vocabulary) which make up four index scores,
What are the limitations of Wechsler scale?
Disadvantages • Very expensive. Cannot be administered by non-psychologists. Administration of the full WAIS-IV is time-consuming. Some subtests are lengthy to administer (Comprehension, Block Design) • There are no parallel versions of the test.
